YouTube Vimeo is more like 1% / 99%. By almost anybody's definition, that's winner take all.
Vimeo aims for $100mil this year: https://www.reuters.com/article/us-iac-interactive-vimeo/iac...
YouTube Could be a $15 billion business this year: https://www.fool.com/investing/2018/02/18/youtube-could-be-a...